polyhedron
    (points = [
               [0, -10, 60], [0, 10, 60], [0, 10, 0], [0, -10, 0], [60, -10, 60], [60, 10, 60], 
               [10, -10, 50], [10, 10, 50], [10, 10, 30], [10, -10, 30], [30, -10, 50], [30, 10, 50]
               ], 
     triangles = [
                  [0,3,2],  [0,2,1],  [4,0,5],  [5,0,1],  [5,2,4],  [4,2,3],
                  [6,8,9],  [6,7,8],  [6,10,11],[6,11,7], [10,8,11],
                  [10,9,8], [3,0,9],  [9,0,6],  [10,6, 0],[0,4,10],
                  [3,9,10], [3,10,4], [1,7,11], [1,11,5], [1,8,7],  
                  [2,8,1],  [8,2,11], [5,11,2]
                  ]
     );